Safety apparatus



7 Aug. 24, 1943. o, E. ZODER SAFETY APPARATUS Original Filed Mayv 25, 1940 M6. ZO-VLQ/L/ Patent ed Aug. 24, 1943 onenn zoaer; St Louis, Mu,

assignments, to'zode Mo., acorpora'tion of Missouriassignurgliyimesne r, Incorporated, St. Louis,

' originallfapplicatioiiiMay z'sjfistog seriai No.

I rea ms? (C -fi e This invention relates tosafety,"apparatus, and withregar'd to certaininor'e specific features to safety app ratu for; jtransfeirin'g' hazardous fluijds, 'suc'h'as inflammabl'es;

The invention is a "division of the invention specified in my parent application Serial 'No. 337,182, filed May 25, lQielOQ eVentuated "as-Patent dated June 2, 1942, which parent an improvement upon my Patent application is g M issued "August 20, -l940,ffcr Safety No. 2 ,'212;'4se, aratus.- H l Among the several objects of the invention may-be noted the 'p-rovision'bf fluid "containing apparatus which has inside parts accurately adjustable from the exterior; butfwhichis packless. Other'objec ts will be inpart' obvious andin'part pointed out'hereinafter. l

The invention accordingly comprises the elements and combinations of elementa'features'of construction, and arrangements of parts fwhich will be exemplified in the structures"hereinafter described, andthe scope of the application of which will be indicated in the following claims.

In the accompanying drawing, there is illustrated in longitudinal Section one of various possible embodiments of the invention.

Similar reference characters indicate corresponding parts herein and in said parent application.

In the parent application certain fluid-containing transfer apparatus A is shown, a part of which is shown herein, for inflammable fluids. In chamber of this apparatus is an abutment (for example, abutment which is pressed by a spring 31 and requires longitudinal adjustment. This adjustment needs to be made freely from the exterior of the apparatus, without incurring leakage between adjustment periods, and without incurring the disadvantages of using packings such as leather, synthetic rubber and the like.

Numeral 1 indicates a cap threaded to the transfer apparatus to form an enclosure.

In the cap "I is an adjustable abutment which is in the form of a cylindric adjustment plug [9.

threaded into the inside of gland 2!. The gland 2| is exteriorly threaded as at 23 into the threaded interior of the cap I; Thethreaded opening in the cap I is chamfered at the bottomas shown at 25 to be engaged by the lower taperedportion 2'! of thegland 2|. Thus by screwing down the gland 2!, the tapered portion 21 moves into the chamfer 25. This squeezes the lower edge ofthe taper 21 against the cylindric plug I 9 so as to seal and lock it in a given ad- 7 any desired adjustment.

lust'ed position. The lit between I Q' and the interior of -Z I is close enough for the desired- 'seal ing ifect. To adjust-the abutment l9, the-gland '21 isbacked off slightlysoas to remove thecom pressive eifect above referred to, whereupon the abutment lumay be threaded-in orout to effect "Ih'e thr'e'a'ds 23 and 33 preferably have substantially the same Ql'ead so that after adjustment at I 9 the tightening of 2| will not "substantially change-theadjus'tment. Afscrewdriver sloti-il'serves'the means by -wh'ioh the a'djustment may be'madeof the abutment in the and n. This adjustable 'abutmen't' it will be seen has 'no packing and this is considered to be "novel.

. 7 To render a given adjustment tainpewproofwa re -3l maybe passedthrough-'openings 3i and thiswire carriesasealf32.

Any required adjustment of spring 3'? can be made by adjusti'ng'the stop "I'Q by use of a screw driver in the slot "2 9, after loosening-of-thegland :21. 'It will be seen that theclinching action at 21 around is after tighteningof the gland is such as slightly to deform the metal of the gland into gripping relationship with the cylinder I 3. This is enough to prevent leakage without the necessity for soft packing material.

pa fluid-containing member,

In View of the above it will be seen that there is provided a very efiective packless means for making the most critical interior adjustments from the outside, through a cylindric plug, with the certainty of avoiding leakage.

In View of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. Adjustable abutment apparatus comprising an opening in said .member, a cylindric inner portion and a larger threaded outer portion forming parts of said opening and a tapered portion between the threaded portion and the inner cylindric portion, a gland, exterior threads on the gland cooperating with said threaded portion, a circular and completely continuous chamfered portion on the end of the gland cooperating with said tapered portion to be squeezed inward, a cylindric opening in the gland of substantially the same diameter as the cylindric inner portion of said opening, a cylindric adjustment plug closely fitting said inner cylindric portion and the opening in the gland, whereby threading of the gland into the threaded portion of the opening forces the chamfer against said tapered portion to grip the adjustment plug when the gland is tightened.

2. Adjustable abutment apparatus comprising a fluid-containing member, an opening in said member, a cylindric inner portion and a larger;.]..

threaded outer portion forming parts of said opening and a tapered portion between the threaded portion and the inner cylindric portion, j

a gland, exterior threads on the gland cooperat ing with said threaded portion, a circular and completely continuous chamfered portion on the end of the gland cooperating with said tapered portion to be squeezed inward, a cylindric open-l ing in the gland of substantially the same diameter as the cylindric inner portion of said opening, a cylindric adjustment plug closely fitting said inner cylindric portion and the opening in the gland, whereby threading of the gland into the threaded portion of the opening forces the chamfer against said tapered portion to grip the adjustment plug when the gland is tightened, threads within the gland, and threads on the cylindric plug engaging therewith.

3. Adjustable abutment apparatus comprising a fluid-containing member, an opening in said member, a cylindric inner portion and a larger opening and a tapered threaded portion and the inner cylindricportion, agland, exterior threads on the threaded'portion of the opening forces the chamfer against said tapered portion to grip the adjustment plug when the gland is tightened, threads within the gland,'and threads on the cylindric plug engaging threads between the plug'and the gland being equal to the lead of the threads between th gland and the fluid-containing member, whereby tightening of the gland may be accomplished after adjustment without afiecting said adjust- 1 ment;

4. Adjustable abutment apparatus comprising a fluid-containing member, an opening in said member, 7a cylindric inner portion and a larger threaded outer portion forming parts of said the gland cooperating with said threaded portion, a circular and completely continuous chamfered portion on the v end of the gland cooperating with said tapered portion 0t be squeezed inward, a cylindric opening in the gland of substantially. the same diameter as the cylindric inner portion of said opening, acylindric adjustment plug closely fittingsaid inner cylindric portion and the opening in the gland, whereby threading of-the gland into the threaded portion of the opening forces the chamfer against said tapered portion to grip the adjustment plug when the gland is tightened,

threads within the gland, and threads on the cylindric plug engaging therewith, the lead of the threads between the plug and the gland being equal to the lead of the gland and the fluid-containing member, whereby tighteningof the after adjustment without affecting said adjustment, and means on the plug outsideofthe gland whereby it maybe adjustably, rotated and for holding it fixed during the period when the gland is tightened.

' ORREN Z ODER.

therewith, the lead of the" portion between the threads between the gland may be accomplished 

